Attachment for notebooks



T. AMUE. ATTACHMENT FOR NOTEBOOKS- APPLICATION FILED mus. 191-9.

Patented 15, 1921.

]77062? for: Yfiozhas findr NORRIS PETERS. INC 1 Luna. WASmMGIoN D CTHOMAS AMLIE, or MINN APOLIS, MINNESOTA.

ATTACHMENT roa' NOTEBOOKS.

Specification of Letters Patent.

Patented Mar. 15, 1921.

Application filed January 29, 1919. Serial No. 273,867.

T 0 all to 71 am it may concern Be it known that I, THQMAS Armin, acitizen of the United States, residing at Minneapolis, in the county ofHennepin and State of Minnesota, have invented certain new and usefulImprovements in Attachments for Notebooks, of which the following is aspecification.

My invention relates'to attachments for note books and similar books.The object is to provide an attachment which may be detachably held inplace underneath the particular leaf that is being written upon andwhich may be readily removed and placed underneath succeeding leaveswhen the writing on one leaf is completed. The object in particular isto provide an attachment in the form of a sheet having the size of theleaves of the book and which is of an unyielding nature so that eachleaf, while it is being written upon, is backed up more firmly thanwould otherwise be the case. Another object is to provide a sheet ofthis character which is sufficiently rigid'to prevent the book frombeing crumpled up particularly when it is provided with flexible covers.My attachment is intended for use in connection with'leaves which are tobe written upon and which are removably held in book form so that freshleaves may be added from time to time as desired.

The full objects and advantages of my invention will appear inconnection with the detailed description thereof and the novel featuresembodied in my inventive idea will be particularly pointed out in theclaims. 7

Referring to the accompanying drawings,'

Figure 1 is a top plan view. Fig. 2 is a cross sectional view. Fig. 3 isa detail view showing the position of the slots in the at tachmentsprior to insertion of the rings. Fig. 4 is a detail view showing theposition of the slots after the insertion of the rings therein.

In the drawings 10 designates the covers of a book, to the back 12 ofwhich are secured rings 14 which may be opened and closed in the usualmanner to receive and hold loose leaves 16 provided with perforationsproperly spaced to have the rings passed therethrough when the ringsare'in open position. The attachment which constitutes my inventionconsists of a sheet 18 provided with slots formed or cut in the edge ofthe sheet in the following manner: The slots consist of a portion 20extending at right angles to an edge of the sheet, and a portion 22inclined toward this edge and preferably terminating in a slightlyenlarged end 24: having a diameter somewhat larger than the diameter ofthe rings 14:. The positioning of the end portions 24: corresponds tothe positioning of the perforations in the leaves. It will be apparent,therefore, as shown in Fig. 1 that the portions 20 of the slots areoffset toward one end of the sheet 18. This sheet is made of materialsuch as celluloid having a smooth surface. and made of sufficientthickness to be substantially unyielding so as to back up each leaf asit is being written upon.

The operation and advantages of my invention will be obvious from theforegoing description. In use the sheet 18 is placed so that theportions 20 of the slots are adjacent the rings 14 as shown in Fig. 3.The sheet is then moved so that the portions 20 and 22 pass along thering until the latter is located in the terminal portions 24, as shownin Fig. &. In performing this operation the sheet 18 first movesdirectly toward the back portion of the book and then moves in aninclined direction until it is in position to be directly superposedupon that leaf of the book which is underneath the leaf to be writtenupon. The latter leaf is then brought down from the position shown inFig. 2 until it lies directly upon the sheet. This operation is repeatedeach time that the writing upon a leaf is finished and in case bothsides of the leaf are to be written upon, the sheet may be placed ateither the right or left hand side of the book, as desired. On accountof the particular formation of the slots in the sheet including theinclined portions 22 and the enlarged end portions 241 it is apparentthat the sheet will be held in proper position except when force isapplied thereto in order to remove it from the rings. On account of thestiffness of the sheet 18 the book is prevented from being crumpled,especially when it has flexible covers.

I claim:

1. An attachment for note books and similar books comprising a sheet ofsubstantially unyielding material, and means for detachably holding saidsheet in place in the book whereby said .sheet may be placed underrial,and means fordetachably holding said 7 neath each leaf of the book whenit is being sheet to the rings, said means including slots written upon,said means including 7 slots having portions extending at right anglesto having portions extending at right angles an edge of said sheet,portions which are 5 toan edge of said-sheetand portions which inclinedto said edge and terminal portions 15 are inclined to said edge. havinga diameter slightly greater than the j 2. An attachment for note booksand simidiameter of the rings.

lair books h'aving loose leaves held by rings In testimony whereof Ihereunto afiix my attached to the back of the bookcomprising signature.

10 a sheet of substantially unyielding mate- I i THOMAS AMLIE.

